<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
		<div id="content" style="height: 150px;line-height: 150px;text-align: center;color: #FFFFFF;background: #CCCCCC;font-size: 80px;">
			
		</div>
		<script>
			let num = 1;
			let content = document.getElementById('content');
			function count(){
				content.innerHTML = num++;
			}
			content.onmousemove = count;
		</script>
	</body>
</html>
